Ultrastructural morphology of the mouthparts and sensilla in the lady beetle Epilachna plicata Weise(Coleoptera:Coccinellidae)
Studying the morphology of insect mouthpart morphology is crucial for understanding their feeding mechanisms.In order to elucidate the ultrastructural morphology of each part of the mouthparts,and the types as well as the distribution of the sensilla on the mouthparts of the adult lady beetle Epilachna plicata Weise,and to gain insights into the function and coordination mechanism of each part of the mouthparts,the morphology of the mouthparts and sensilla of E.plicata were observed using scanning electron microscopy,and were compared with the morphology of other lady beetles exhibiting different feeding behaviors.The mouthparts of E.plicata were identified as typical chewing mouthpart,consisting of labrum,mandible,maxillae,labium and hypopharynx.Seven types of sensilla were identified according to their shape,length and distribution:sensilla chaetica,sensilla basiconica,sensilla trichodea,sensilla styloconica,sensilla placodea,cuticular pore,and a branched brush-like structure.Notably,the branched brush-like structure was reported for the first time in lady beetles.While the basic composition and primary morphology of the mouthparts of E.plicata were similar to those of other species,subtle morphological differences were observed,and these differences were closely related to feeding habits.
Epilachna plicatamouthpartssensillascanning electron microscopyultrastructural morphology
NETL
NSTL
万方数据
